Topping DX9 Discrete DAC NFCA Headphone amp - AK4499EQ Flagship DAC, Hybrid Relay Volume Control, 6-Channel Discrete NFCA high-Performance (Black)

Description

• Self-Developed PSRM Architecture Toppings proprietary PSRM DAC architecture uses 16 discrete elements per channel to perform 1-bit decoding with nanosecond-level switching. By eliminating off-the-shelf DAC chips, the DX9 Discrete controls every step of the digital-to-analog process. The result is extraordinary linearity and clarity: 131dB SNR, <0.00006% THD+N, and perfectly stable channel balance.
• Goodbye to jitter A CPLD precision clock system and dual-stage jitter suppression circuit keep the digital signal clean. The AK4118 receiver handles coaxial, optical, and AES inputs with less than 50ps RMS jitter, supporting PCM up to 768kHz and DSD512. Music sounds defined and stable, with transients intact and decay left untouched.
• Balanced power from end to end The DX9 Discretes six-channel discrete NFCA amplifier is built for demanding headphones. Each channel operates independently, producing up to 7,080mW 2 at 32 with noise below 0.5Vrms (balanced) and 1.1Vrms (single-ended). The sound stays quiet, composed, and distortion-free no matter how far you turn the knob.
• Precision volume you can trust while the ten-band PEQ and fully-balanced hybrid relay volume control let you tailor your playback with surgical control. Use it as a transparent DAC for active monitors, a powerful headphone amplifier for high-impedance cans, or a pristine preamp for your main system.
• Output options your way Choose between headphone, line, or preamp outputor run everything at once with All Output Mode. Outputs include XLR, RCA, 6.35mm, 4.4mm, and XLR-4, all using NEUTRIK connectors for reliable, professional-grade performance.
• User-friendly interface Dual 2.0-inch color displays powered by the Aurora UI let you switch between FFT spectrum, VU meters, and playback info. Its intuitive, fast, and genuinely helpful. No manual needed.

Product highlights
Fully balanced DAC and headphone amplifier combo
Self-developed 16-element PSRM 1-bit DAC architecture
Six-channel discrete NFCA headphone amplifier
Up to 7,080mW 2 output power at 32
THD+N <0.00006%, SNR 131dB, DNR 131dB
Fully balanced hybrid relay volume control
Ten-band high-precision PEQ with software control
Headphone crossfeed with BS2B simplified mode
XMOS XU-316 USB processor supporting PCM 768kHz / DSD512
Bluetooth 5.1 with LDAC, aptX Adaptive, aptX HD, aptX, AAC, SBC
8 digital inputs (USB, BT, 2OPT, 2COAX, AES, IIS)
Multiple outputs: XLR, RCA, 6.35mm, 4.4mm, XLR-4
All NEUTRIK connectors for durability and precision fit
Aurora dual-display UI with FFT, VU, and playback info
12V trigger synchronization and programmable control knob
CNC aluminum body with glass top and ambient lighting

Specs
DAC Section
DAC type: 16-element PSRM 1-bit discrete
THD+N @1kHz (A-wt): <0.00006%
SNR: 131dB
Dynamic range: 131dB
Channel crosstalk: 136dB @1kHz
Frequency response: 20Hz40kHz (2dB)
Output level: 5Vrms (XLR), 2.5Vrms (RCA)
Output impedance: 100 (XLR), 50 (RCA)

Headphone Amplifier
THD+N @1kHz (A-wt): <0.00007%
Output power: 7,080mW 2 @32 (balanced)
Noise: <0.5Vrms (balanced), <1.1Vrms (single-ended)
Output impedance: <0.1
Channel crosstalk: 133dB @1kHz
Gain: 12.5dB (low), 24.5dB (high)

Pre-Amplifier
Output level: 15Vpp (low), 48Vpp (high)
Dynamic range: 131dB
Channel balance: 0.3dB

Inputs
USB / BT / OPT1 / OPT2 / COAX1 / COAX2 / AES / IIS
PCM: up to 768kHz / 32bit
DSD: up to DSD512
Bluetooth codecs: LDAC, aptX Adaptive, aptX HD, aptX, AAC, SBC

Outputs
Line/Pre Out: XLR / RCA
Headphone Out: 6.35mm / 4.4mm / XLR-4
Trigger: 12V In/Out

Power
AC input: 100240V, 5060Hz
Power consumption: dependent on mode

Whats included
DX9 Discrete x 1
Remote control x 1
AC cable x 1
USB cable x 1
Bluetooth antenna x 1
6.35mm to 3.5mm adaptor x 1
Product Information Card x 1

Shipping and Returns

• We offer tracked shipping on all orders. Tracking information will be shared as soon as the order is dispatched.
• Please check the delivery estimate before adding a product to the cart. This is displayed for every product on the website.
• Available shipping methods and charges will be displayed at the time of checkout, depending on your exact location.
• All customers are entitled to a return window of 14 days, starting from the date of delivery of the product(s).
• Customers are advised to read our return policy for details of the return process, eligibility, refunds as well as cancellations or exchanges.
• In case of any issues or concerns about Shipping or Returns, please contact us and we will be happy to help.